Variant chr8-96784974-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_016134.4(CPQ):c.77A>G(p.Asn26Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,461,556 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

CPQ
NM_016134.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.497

Variant links:

Genes affected

CPQ (HGNC:16910): (carboxypeptidase Q) This gene encodes a metallopeptidase that belongs to the peptidase M28 family. The encoded protein may catalyze the cleavage of dipeptides with unsubstituted terminals into amino acids. [provided by RefSeq, Jul 2013]

CPQ links:

LOC124901985 (HGNC:):

LOC124901985 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04493949).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CPQ	NM_016134.4 link	c.77A>G	p.Asn26Ser	missense_variant	2/8	ENST00000220763.10	NP_057218.1	Q9Y646A0A024R9B8
LOC124901985	XR_007061019.1 link	n.354+6568T>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CPQ	ENST00000220763.10 link	c.77A>G	p.Asn26Ser	missense_variant	2/8	1	NM_016134.4	ENSP00000220763.5		Q9Y646

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000279

AC:

AN:

250526

Hom.:

AF XY:

0.0000369

AC XY:

AN XY:

135390

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000327

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1461556

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727082

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000731

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 20, 2024

The c.77A>G (p.N26S) alteration is located in exon 2 (coding exon 1) of the CPQ gene. This alteration results from a A to G substitution at nucleotide position 77, causing the asparagine (N) at amino acid position 26 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.59

CADD

Benign

0.27

DANN

Benign

0.77

DEOGEN2

Benign

0.0013

T;T;T;T;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.68

T;T;T;T;T

M_CAP

Benign

0.0057

MetaRNN

Benign

0.045

T;T;T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.57

N;.;.;.;.

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.79

N;N;N;N;N

REVEL

Benign

0.022

Sift

Benign

0.35

T;T;T;T;T

Sift4G

Benign

0.61

T;D;T;T;D

Polyphen

0.0

B;.;.;.;.

Vest4

0.12

MutPred

0.38

Gain of glycosylation at N26 (P = 0.0466);Gain of glycosylation at N26 (P = 0.0466);Gain of glycosylation at N26 (P = 0.0466);Gain of glycosylation at N26 (P = 0.0466);Gain of glycosylation at N26 (P = 0.0466);

MVP

0.18

MPC

0.092

ClinPred

0.0095

GERP RS

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.044

gMVP

0.41

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over